PCM Communication Failure (Stored) - MTC

Test 1:

SYMPTOM
PCM COMMUNICATION FAILURE (STORED) - MTC

TEST NOTE
This symptom is diagnosed using the test A/C SWITCH FAULT (STORED) - MTC.

WHEN MONITORED
With the ignition on.

SET CONDITION
This DTC will set if the A/C - Heater Control Module does not receive the Fuel message from the PCM for more than 5 seconds.

POSSIBLE CAUSES
- Check for active HVAC DTCS and system tests fault messages
- Stored code(s) test complete